Digital goods prices won't increase due to demand necessarily. Those prices will rise because electricity, rent, and all the other overhead line items increase. Those increases get passed to the customer, who is going to be hit with increased prices for the necessities of life - food, water, housing.

Digital goods do nothing to support human life - food, water, housing. Sure you can buy things online, but you can buy those things at brick and mortar stores. In turn, gas prices will rise to the point where delivery services become unviable.

Inflation touches the entire chain whether the product is digital or otherwise.